Transaction in Own Shares

BP PLC
05 July 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 5 July 2006

BP p.l.c. announces that on 4 July 2006, it purchased 4,800,000 ordinary shares
at prices between 628.5 pence and 636.5 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above transaction, BP p.l.c. holds 1,710,289,544 ordinary shares
in Treasury, and has 19,984,804,019 ordinary shares in issue (excluding Treasury
shares).

Enquiries: Fergus MacLeod, BP p.l.c. Tel : [phone]



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